Accession Number : AD0673935

Title :   COUPLING BETWEEN ANTIPODAL VHF-UHF ANTENNAS ON LARGE JET AIRCRAFT,

Corporate Author : BOEING CO RENTON WASH AIRPLANE DIV

Personal Author(s) : Oh,Luis L.

Report Date : 26 JUN 1968

Pagination or Media Count : 64

Abstract : Experimental and theoretical studies were conducted to determine the signal isolation top- and bottom-mounted VHF-UHF antennas on jet aircraft. A 1/4 scale conducting cylinder was used to simulate a Boeing 707 fuselage. Effects of the wings and other proturberances were neglected. Both blade and slot antennas were investigated. The natural phase relations which exist between electromagnetic waves diffracted around the aircraft fuselage were exploited to achieve isolations of 60-80 db between antennas mounted antipodally. (Author)

Descriptors :   (*AIRCRAFT ANTENNAS, ELECTROMAGNETIC COMPATIBILITY), JET AIRCRAFT, VERY HIGH FREQUENCY, ULTRAHIGH FREQUENCY, RADIOFREQUENCY INTERFERENCE, SLOT ANTENNAS, ULTRAHIGH FREQUENCY

Subject Categories : Aircraft
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE